Closure seal



, Dec. 2, 1924. 1,517,396

D. M. BOOTHMAN CLOSURE SEAL Filed Oct. Il 1922 2 Shana-Sheet l wnNassEss INVENTO@ l BY m @MM ATTORNEYS` f f or the 4container Patented Dec. 2, 1924.

UNITED sf'riifresv PATENT oF'FiCE.

DALE M. BooTHMAN, or PAnNAssUs,

- PENNSYLVANIA, ASSIGNOR T0 ALUMINUM SEAL COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CLOSURE SEAL.

Application iled .October 11,1922. Serial No. 593,791.

To all u1/1.0mz't may concer/ii.'

' Be it known that l. DALF.

M. Boo'riiMANt a citizen of the United States` and a resident ofv invented a new and useful Closure Seals, of which th specification.

The invention' relates to P arnassus, in vthe county of morelandand State of Pennsylvania,

West- Improvement in efollowing is a- 'whereby `t-umblers having the form and closures or sealing devices for hermetically sealing the mouths of .containers in products are packed.

which food and like While the invention is broadly applicable to a Wide variety of containers, it is'particnlarly 15- nection with the'sealing of useful in consucli as are ordinarily used for packing jellies, peanut butter and other articles having similar characteristics and requirements as far as vconcerns their packing.l

projectingbead at the 4for holding the seal.

top

Usually thezseals for vglass tumblers and like containers vrequire a special finish or of the tumblers This finish is objectionable, among other reasons becausemit renders the tumblers unsui table for use on the table as drinking glasses.' The special top iinish plainly indicate blers originally were jellyl them unsightly like, and makes s that the` tumglasses or the for table use. although their cost is a considerable proportion of that Vof the and although in general suited for table use. Furthermore, usual seals for such containers occasional fail when sub]ected -to interior for example the -pressure sterilizing of food packed i entire package,

shape they are well the 1y pressure, as incident -to the n the containers.l

Also. the usual seals are often difficult to open or break, frequently requiring the use of 'household or special tools.

implements or An object of this invention isto provide a hermeticl closure or' seal economically manufactured which can be easily without the use lof any tool, and

of which'. afbei" the seal is and certainly opene ,which may be and applied and the cap broken, may be satisfactorily used for a temporary cover While the ing'consumed.

contents are be- Anotlier object is to produce a side-seal or closure adapted for use on glasses, tumblers have glass tumblers and similarv wide-mouthed receptacles, which will withstand a high internal pressure dur- ,ing the process of sterilization of thecontainer, and thus avoid the breaking of the I seals orl the sterilization.

Another obiect is to provide sealing means blowing off of the caps during ingv additional features of the invention'in fthe preferred embodiment thereof; Figs. 3

and 4 views similar to Fig. 1 showing differentapplications of the invention; and Fig. -5 a central sectional view of a closure before itis applied to a container.

In the practice of the invention an an-l nularspace is formed between the outer wall of the open, top of a container an the inner wall of afdepending substantially cylindrical skirto-f a closure or cap', and in such space there is placed a sealing gasket of flexible coml-iressible material which is held in sealing lposition by a relatively soft and bendable metal Wire pressed firmly Aagainst the exposed edge of the gasket, the

wire in turn being held in place by its engagement between the container and cap skirt and serving also to hold the cap upon the container. y Some of the features of the invention are illustrated in Fig. l which shows the applicability of one embodiment to seals for wide-mouthed containers suoli as jelly glasses, tumbleis and the like, and with reference d towhich the structural features ofthe invention and the manner of practicing it maybe explained. A tumbler 1 is covered by a cap 2, which, before being applied tothe tumbler-,has a substantially cylindrical depending skirt 3, as shown in Fig. 5, and the cap is sealed-to the mouth ofthe timbler by a gasket 4 and retaining wire 5.,

mouth Vof the container-'may be cylindrical and the cap skirt fiaredoutwardly, as indicated in the bottle shown in Fig. The

neck ot the bottle may be provided interiorly with a ledge l() for supporting a cover 11 which may be usedas ahtemporary closure :tor the bottle while its contents is being consumed. In l'place of the cover 11 of Fig. 3, the bottle may be provided with a ree-losing cork 12 'asillustrated in Fig. .4. 'Manifestly' other forms ot containers may be sealed by the improved closure.

Various materials may be used as gaskets depending, lamong other things, on the ma. terial packed in the container. The gaskets,"

whetherdthey are in the form ot continuous Irings as in the seal of Fig. l, or are string- .like as in the seal of Fig. 2, ina-y be of vulcanized of unvulcanized rubber, flexible and compressible' paper, waxed twine, orl any other materials suitable ttor the purpose. As tothe retaining wire, it may be formed of various bendable relatively soft metals, although aluminum has been found to be particularly suitable. In all forms of the closure the/gasket makes a hermetic seal, while the retaining wire, wedged in below the gasket, notonlycoinpresses the gasketv tightly into position, but also firmly holds the cap uponfa container and gives mechanical strengthto the closure to resist the val il'iious forces which tend to dislodge'the gas- An important advantage of seals of this character is that there is required no bead or other special finish on the outer walls of container mouths to`render seal tight and durable, and therefore tumblers suitable for subsequent use as drinking glasses may be used as containers. Furthermore, when the seal is broken and the cap removed, the cap,

being unbroken by its removal, may be used v rate patent application.

I claim: 4 l. The combination with a container, ot a 'l metal cap closing the mouth of the container' and having a depending skirt forming with the wvall ot the container an annular space, av sealing Lgasket in the top of said space, and a wire in said space 'against the lower firmly upon the container.

2. The combination with a container, o-f a edge of the gasketand retaining the cap `metal cap closing the mouth ot the container and having a depending skirt 'forming an annular` spacewith the wall of the container, a sealing gasket inthe top of said space, and a retaining wire in said space below the gasket and pressing upwardly against the gasket and outwardly against 'the cap skirt and thereby holding the cap firmly upon the container.

3. The combination with a container, of. a inetal cap having a depending skirt forming an annular space with the outerwall of the container, a sealing gasket in the upper portion of said space, and areta-ining wire in said spate againstthe lower edge of the gasket, the retaining wire being engaged and held in place by the cap skirt-and in turn holding -the cap upon the container.

4. The combination with a container, of a metal cap having a depending skirt Jforming with the outer wall of the container an lannular space, a sealing gasket in the top of said space, and a retaining wire in said spaceag'ainst the lower edge of the gasket and engaged by the cap skirt, said wire holding the cap upon the container, and the outer end of the wire protruding below the lower edge ofthe= cap skirt for engagement to remove the wire.

5. The combination with a container, ota metal cap having a depending skirt forming an annular space .with the wall of the container, a sealing gasket in the top ot said space, and a. retaining wire in'said space against the gasketv and' holding the cap upon the -,container, the lower edge of said skirt being crimped inwardly below ythe retainingwire, and the outer end of the retaining wire protrudingbelow the lower crimped edge of the skirt for engagement vto remove the wire. Y

6. The combination with a container. of a metal cap having a depending-skirt forming with the outer wall of the container an ,annular space of wedge-shaped cross sec.-

ti'on with its base downward, a sealinggasket in the top 'of said space, and a retaining wire in said space against the lower edge of thegasket, the retaining wire being engaged,and held 'nplace byI the cap skirt and in turn holding the cap upon the container. y

u 7. The combination of a container having an outwardly flaring wall .at its mouth, a cap closing the mouth of the container and having a depending substantially cylindrical skirt forming with the outer wall of the .container mouth an annular space of wedgeshaped cross section, a sealing gasket in the top of said space, and a wire in said space against the lower edge of the gasket retaining the cap upon the container.

8. The combination of a tumbler having a smooth outwardly Haring wall at its mouth, a cap closing the mouth of the lilo tumbler and having a dependingsubstantially cylindrical skirt forming with the outer wall of the tumbler an annular space sob of wedge-shaped cross'section, a string-like sealing gasket wound around the mouth of the container in the top of said space, and a wire wound around. the tumbler in said space against the lower edge of the gasket retaining the cap upon the container, the .lower edge of thefskirt being crimped inwardly, and the outer end truding below the crimped edge of the skirt.

9. The combination with a container, of a metal cap having a skirt forming with the container an annular space of wedge-shaped cross section, and a string-like sealing and cap-retaining member wound in said space and having its -outer end protruding from between the container and skirt for engagement to unwind the member and thereby release the cap.

l0. 'The combination with a container, of ametal cap having a skirt forming with the container an annular space of wedgesllaped cross section, and a string-like sealing and cap-retaining member wound in said space and having its outer end protruding from between the container .and

skirt for engagement to unwind the member and thereby release the cap, said member consisting of a compressible gasket in the inner and a retaining wire in the outer p0rtion of said space.

l1. The kcombination with a container, of a metal capchaving a depending skirt forming with the container an annular space of wedge-shaped cross section, and a string-like sealing and cap-retaining member wound in said space, the lower edge of said skirt being crimped inwardly below the sealing member, and the outer end of the sealing member protruding' below the skirt for engagement to unwind the member and thereby bend the skirt outwardly and release the` .12. The combination with. a container, of a metalc-ap having a depending skirt forming with space of wedge-shaped cross section with its ase downward, and a string-like sealing and cap-retaining member wound in said space and consistsing of a flexible' gasket in the inner and a retaining wire in the outer portion vof said space, the lower edge of said skirt being crimped inwardly below said retaining wire, and the outer end .of the retaining wire protruding below the skirt for engagement to unwind the retaining wire and thereby bend the skirt out-` wardly and release the cap. Y

13. The combination with a container, of a metal cap having a' skirt forming an annular space with the outer wall of the container, and a string-like gasket wound in' l the upper and a retaining wire in the lower o'E the wire prothe container an 'annular portion of said space, the outer end of the gasket overlapping the outside of the inner end of the wire, and the outer end of the wire'protruding below the skirt for engagement to release the cap, whereby the removal of the retaining wire causes the outer end of the gasket to be exposed below the skirt. d

14. The combination with a container, of a imetal cap having a skirt forming with the container an annular space of wedge-shaped cross section, and a string-like Flexible and compressible gasketwound in the upper and a retaining wire in the lower portion of said space, the outer end of the gasket overlapping 'the outside of/the inner end of the wire. and the outer end of the wire protruding below the skirt for engagement to release the cap, whereby the removal of the retaining wire causes the outer end of the gasket to be 'exposed vbelow the skirt.'

15. The combination with a container, off

a cap formed 'of resilient metal closing the mouth of the container and. forming an an- .nular space with the wall of the container,

tion and outwardly against the cap skirt placing it under tension and holding the cap upon the container.

16. The combination with a container, of a cap formed of resilient metal closing the mouth of the container and forming with the outer wall thereof an annular space of wedge-shaped cross section. a sealing gasket in the top of said space` and a retaining wire in said space below the gasket, said retaining wire pressing upwardly against the gasket to hold it in position and outwardly against the cap skirt placing it under initial tension and holding the cap upon the container.

17. The combination with a container, of a can formed of resilient metal closing the mouth of .the container and forming with the outer wall thereof `an annularspace of wedge-shaped cross section. a string-like Asealing member wound in thevtop 'et said space. and a retaining w1re in said space below the gasket. said retaining wire pressing upwardly against the gasket to holdy it in Sealing position and outwardly against -the cap skirt placing it under tension 'and hold- .the capupon the container; the lower end ot said wire protruding below the can skirt. '18. The combination withfa container. ot

a can Formed of resilient metal closing the mouth of the container and forming with 'the outer wall thereoie an annular space of iso having Iits outer end lprotrndiinig; below the of the retaining wire causes the outer end of cap skirt,y said4 retaining wire' pressing upthe gasket to be exposed below the skirt.

I wardly against the gasket ito hold it in po- In testimony whereof I si m name. `10

sition -anell outwardly against the cap skirt i DALE M. B 0T N. placing it under tension, the outer end-of Witnesses: the gasket-*overlapping the outside of the AB. F. EEAM,

` inner end'of the wire whereby the removal "41. G.`W1LsoN. 

